火灾发生以后，建筑物内的可燃物都已变成残骸。大量生活用品燃烧殆尽，物理形态发生了根本性的变化。玻璃有着独特的属性，在火灾现场能够保留下来。因此，勘验火场以辨识玻璃痕迹为主要工作内容。玻璃痕迹，成为了证实火灾发生原因的重要物证。%After the fire, the combustible in the building has been turned into debris. A large number of articles for daily use are burned up with fundamental change of physical form. Glass has unique properties and can survive in the fire. Therefore, indentifying glass trace is the main work of fire inquest. Glass trace has become important evidence of the cause of fire.
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